Dainippon Screen Mfg. Co., Ltd.

Konica Minolta Medical and Graphic, Inc.

Hirohisa Tanaka

Toshio Tamura

Mikizo Katsuyama

Takanori Tsuji

Katsuji Oku

Masayuki Muraoka

Kenji Matsumoto

Yukihiko Inagaki

Toru Kawada

Shigeru Sasada

Teruo Fujii

Yoshikazu Masuda

Yoshio Miyaushiro

Shinichi Matsubara

Katsushi Fujita

A sheet printing plate material includes a plastic support having optical transparency for infrared light, and at least a hydrophilic layer and a thermosensitive image formed layer formed on the plastic support, wherein the sheet printing plate material is wound on a drum having surface reflectance of 0.1 to 10% at a wavelength to be used, and the sheet printing plate material is used for a image recording apparatus where the drum is rotated to expose an image data with a light source so that an image is recorded.

Image recording apparatus and printing plate material

An image recording apparatus includes two recording material storage sections arranged vertically, each having a magazine, a cutter and a pair of take-out rollers, a transport device having a pair of transport rollers for transporting a recording material, the transport device supporting the recording material in a horizontal state, and a recording drum for holding the recording material on a peripheral surface thereof. The apparatus further includes a tilt mechanism for tilting the transport device to set the pair of transport rollers to a position opposed to the recording drum, and an image recorder for recording an image on the recording material held by the recording drum.

Image recording apparatus

A punch unit includes punch blocks supported by an arm through support plates. The arm has, arranged thereon, a motor for rotating a drive rod, a detector for detecting rotation angles of the drive rod, and a sensor for detecting a forward end of a recording material. The punch unit is movable by a moving mechanism including support members arranged at opposite ends of the arm, slide shafts and ball screws connected to the support members, and a pulse motor for driving the ball screws through a synchronous belt and synchronous pulleys.

Printing plate producing machine

Color separation image signals (Y, M, C, K) are converted into halftone dot image signals (Y.sub.d, M.sub.d, C.sub.d, K.sub.d) by a halftone block circuit (29). Red, green, blue and white beams are obtained from red, green and blue light sources (31R, 31G, 31B) or from a single white light source. These beams are modulated by acousto-optical modulators (32R, 32G, 32B, 35) responsive to the halftone dot image signals (Y.sub.d, M.sub.d, C.sub.d, K.sub.d) and thereafter converged onto a color photosensitive material (23), to produce a halftone dot color image on the color photosensitive material (23).

Method of and apparatus for recording a halftone dot color image on a

A pattern shaped and sized to fit adjacent the inner cylindrical surface of a transparent scanner drum, of a drum-type image scanning system is oriented to display at least one line parallel to the axis of rotation of the drum. The pattern preferably has other lines oriented to other predetermined directions. The pattern is held in place inside the drum by a coaxial lighted cylindrical pattern holder rotatable with the drum. The user aligns the original with reference to the lighted pattern for affixation as desired on the drum surface for scanning of the original image therefrom.

Apparatus and method for precisely orienting originals on an image

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Kyoto, Japan

Hirohisa Tanaka